Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 429 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) cloud server (d) phone app
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
3. 3.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
5. 5.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) actuator (d) Wi-Fi
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
11. 11.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
14. 14.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
18. 18.What does the actuator do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
19. 19.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
20. 20.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain table fan (d) a pencil sharpener
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
22. 22.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) phone app
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
25. 25.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a battery torch (d) a smart energy meter
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.What does the phone app do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
31. 31.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
32. 32.🌐 In an IoT system, which part stores data online? (a) phone app (b) sensor (c) cloud server (d) Wi-Fi
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
34. 34.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
37. 37.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
40. 40.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a battery torch

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids